Young children—especially those younger than 2 years—are at an increased risk of hospitalization and complications from influenza.1 Children are also often responsible for spreading the virus to household members and other close contacts, who may themselves be at increased risk.2 In the 2018-2019 influenza season, children younger than 5 years had more than 2.9 million estimated illnesses, 2 million medical visits, over 20 800 hospitalizations, and 219 deaths.3 Most children who die from influenza are not vaccinated.4